As to the networking problem, it might work now... I reset my server.
As to the other, if you create a new install and copy the entire mythruna.db directory from your old install then it should work. If it doesn't then it sounds like parts of the mythruna.db directory are missing or they got corrupted. Hard to say at this distance.
Sorry you are having these issues.
Thanks, Paul, for restarting your server. I'm back in the multi-world. When I add my database folder to the clean install it will work, with my buildings, but not my blueprinted objects, if I don't copy the database script file. I haven't been able to get my blueprints to show up. the part of my database script file that's different from the clean install is:
CREATE CACHED TABLE PUBLIC.MODELINFO(ENTITYID BIGINT PRIMARY KEY,BLUEPRINTID BIGINT)
CREATE CACHED TABLE PUBLIC.CREATEDBY(ENTITYID BIGINT PRIMARY KEY,CREATORID BIGINT)
CREATE CACHED TABLE PUBLIC.MASS(ENTITYID BIGINT PRIMARY KEY,INVERSEMASS DOUBLE)
CREATE CACHED TABLE PUBLIC.BODYTEMPLATE(ENTITYID BIGINT PRIMARY KEY,BLUEPRINTID BIGINT)
CREATE CACHED TABLE PUBLIC.MASSPROPERTIES(ENTITYID BIGINT PRIMARY KEY,COG_X DOUBLE,COG_Y DOUBLE,COG_Z DOUBLE,INERTIA_M00 DOUBLE,INERTIA_M01 DOUBLE,INERTIA_M02 DOUBLE,INERTIA_M10 DOUBLE,INERTIA_M11 DOUBLE,INERTIA_M12 DOUBLE,INERTIA_M20 DOUBLE,INERTIA_M21 DOUBLE,INERTIA_M22 DOUBLE)
CREATE CACHED TABLE PUBLIC.VOLUME(ENTITYID BIGINT PRIMARY KEY,VOLUME DOUBLE,SIZE DOUBLE)